• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.15-20
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• 2005

We have achieved 180-degree angle of view performance using Super-PVA (S-PVA) technology first time in TFT-LCD industry. 82" full high definition ($1920{\times}1080$) TFT- LCD panel, the world's largest TFT-LCD, have been developed. In addition to the size breakthrough, this product achieves 600nits brightness, over 1200:1 contrast ratio, viewing angle free, 92% color gamut, and 8ms response time. Several key enabling technologies were developed to achieve these specifications, including two transistor direct driven independently controlled S-PVA subpixels, non even area ratio sub-pixels for optimal offaxis gamma, gate overlap driving for larger driving margin, new CCFL technology for higher color gamut, and advanced fabrication techniques including the use of Samsung's new $7^{th}$ generation line.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.8A
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• pp.650-656
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• 2003

In 1995, a group of representatives from the integrated circuits and computer-aided design industries presented a industry standard bipolar model called the VBIC model. The VBIC model includes the improved Early effect, quasi-saturation, substrate parasitic, avalanche multiplication, and self-heating which are not available in the conventional SGP model. This paper applies VBIC model for SiGe HBT device and develops an accurate and efficient methodology to extract all the DC and AC parameters of the VBIC model for SiGe HBT device at room temperature. Simulated results by the extracted VBIC model parameter are compared with the measurement data and show very good agreement in both DC and s-parameters prediction.

• Proceedings of the Korean Reliability Society Conference
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• 2005.06a
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• pp.385-392
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• 2005

The restriction of the use of hazardous substances in electrical and electronic equipment legislation mandates the substitution of lead and other hazardous substances in electronics products by July 2006. Due to this legislative pressure, the electronics industry is moving to adoption of lead free solders. In this paper, we investigated a flux to restrict generating electrochemical migration in lead-free solder. The lead-free solders used in this study were Sn-0.7Cu-0.01P and Sn-3.0Ag-0.5Cu. To measure the resistance of electrochemical migration, the dew-cycle test and water drop test were adopted. As the result, now flux having high durable of electrochemical migration was developed.

• Smart Media Journal
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• v.7 no.4
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• pp.61-69
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• 2018

Multi-tracking of general objects and specific faces is an important topic in the field of computer vision applicable to many branches of industry such as biometrics, security, etc. The rapid development of deep neural networks has resulted in a dramatic improvement in face recognition and object detection problems, which helps improve the multiple-face tracking techniques exploiting the tracking-by-detection method. Our proposed method uses face detection trained with a head dataset to resolve the face deformation problem in the tracking process. Further, we use robust face features extracted from the deep face recognition network to match the tracklets with tracking faces using Hungarian matching method. We achieved promising results regarding the usage of deep face features and head detection in a face tracking benchmark.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.112-119
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• 2021

In the Fourth Industrial Revolution and the foundation of software and hardware technologies through ICT, the technology to analyze the principles of information processing activities is the ability to implement programming. In this study, to improve the programming academic performance of electronics majors, firstly, we presented an effective teaching method in order to promote employment in the programming field by improving problem-solving skills and logical thinking skills in the programming field that electronics majors do not prefer. Secondly, we plan to promote intelligence informatization by converging intelligence information technology into the existing electronics industry by developing software utilization skills through programming curriculum that reflects the specificity and reality of electronics. Lastly, as computer programmers, we would like to expand creative talent education by developing learners' capabilities to cultivate smart talents who have both hardware and software capabilities.

• JSTS:Journal of Semiconductor Technology and Science
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• v.13 no.3
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• pp.237-244
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• 2013

A continuous, explicit drain-current equation for short-channel double-gate (DG) MOSFETs has been derived based on the explicit surface potential equation. The model is physically derived from Poisson's equation in each region of operation and adopted in the unified regional approach. The proposed model has been verified with numerical solutions, physically scalable with channel length and gate/oxide materials as well as oxide/channel thicknesses.

• IEMEK Journal of Embedded Systems and Applications
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• v.11 no.1
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• pp.15-20
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• 2016

Recently, the u-IT applications for plants and livestock become larger and control of livestock farm environment has been used important in the field of industry. We implemented wireless sensor networks and farm environment automatic control system for applying to the breeding barn environment by calculating the THI index. First, we gathered environmental information like livestock object temperature, heart rate and momentum. And we also collected the farm environment data including temperature, humidity and illuminance for calculating the THI index. Then we provide accurate control action roof open and electric fan in of intelligent farm to keep the best state automatically by using collected data. We believed this technology can improve industrial competitiveness through the u-IT based smart integrated management system introduction for industry aversion and dairy industries labor shortages due to hard work and old ageing.

• Electronics and Telecommunications Trends
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• v.22 no.4 s.106
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• pp.183-191
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• 2007

본 연구에서는 최근에 빠르게 성장하고 있는 R&D 관련 산업의 국민경제적 위치와 타산업과의 연관관계를 파악함으로써, R&D 관련 산업의 중요성과 앞으로의 방향을 제시하기 위하여 최근 한국은행에서 발행한 2000년도와 2003년도의 산업연관분석자료를 이용하여, R&D 관련 산업구조와 정보통신산업과의 연관관계를 파악하였다. 연구결과 2000년도에 비하여 2003년도의 산업연관분석에 따를 경우에 R&D 관련 산업의 생산활동 증가는 정보통신산업의 생산 및 부가가치활동에 보다 낮은 영향을 미치는 것으로 나타났으며, 이는 정보통신산업에 대한 R&D 관련 산업의 영향력이 약간 낮아지는 산업구조를 보여주기 때문에 정보통신산업 안에서 R&D 정책과 정보통신산업 밖에서 실시하는 R&D 정책에 대한 고려 및 효과측정이 동시에 이루어져야 할 필요성을 제시하는 것으로, 보다 국가 전체적이고 체계적인 R&D 정책적 고려가 필요함을 보여 주었다.

• ETRI Journal
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• v.37 no.1
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• pp.1-10
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• 2015

A blind hopping phase estimator is proposed for the demodulation of received signals in frequency-hopping spread spectrum systems. The received signals are assumed to be bandwidth limited with a shaping filter, modulated as frequency modulation (FM) or binary frequency shift keying (BFSK), and hopped by predetermined random frequency sequences. In the demodulation procedure in this paper, the hopping frequency tracking is accomplished by choosing a frequency component with maximum amplitude after taking a discrete Fourier transform, and the hopping phase estimator performs the conjugated product of two consecutive signals and moving-average filtering. The probability density function and Cramer-Rao low bound (CRLB) of the proposed estimator are evaluated. The proposed scheme not only is very simple to implement but also performs close to the CRLB in demodulating hopped FM/BFSK signals.

• Electronics and Telecommunications Trends
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• v.28 no.2
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• pp.97-114
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• 2013

시스템반도체는 스마트 및 융합이라는 동인에 적합한 미래유망 산업 및 서비스 창출에 핵심이 되는 부품으로써, 다양한 산업 경쟁력에 미치는 파급효과가 대단히 높은 분야이다. 또한 대외 수출 의존도가 높은 산업구조에서 메모리반도체 세계 1위라는 성공을 발판 삼아 4배나 큰 시스템반도체 시장을 확보해야 하는 것은 당면한 과제 중 높은 우선순위에 속한다고 하겠다. 본고에서는 국내외 시스템반도체 산업 및 시장 동향, 경쟁국의 지원정책 동향, 국내 팹리스 기업의 현황과 문제점, 시스템반도체를 설계 및 검증하는 기법의 진화, 그간의 정부 지원정책 성과분석 등을 통해 향후 시스템반도체 산업과 팹리스 기업들의 경쟁력 향상을 위한 방안을 제시하고자 한다.